Fonds consists of records primarily originating from Herbert L. Stewart's work as a philosopher, professor, and political commentator. Records include manuscripts and typescripts, notes, scrapbooks, diaries, offprints, reports, and correspondence. One series comprises Stewart's collection of his father's sermons, notes, and correspondence.

Fonds consists of materials related to Logan’s career (1912-1985), fiction and philosophy manuscripts (1925-1983), published articles (1922-1969), his wide-ranging correspondence (1942-1991), his studies concerning Cree and other languages (1932-1969), autobiographical and biographical works (1929-1982), genealogical studies of his family and others (1955-1984), certificates he received throughout his life (1906-1992), the indices he created for his documents (1949-1986), , his diaries (1930-1980), the journals, fieldbooks, and logbooks he wrote (1907-1960), images he took or collected (1909-1992), and other miscellaneous materials(1934-1983). All textual materials relate to his life, his far-reaching research studies, or his writings.